private void btnAdd_Click(object sender, EventArgs e)
        {
            int       id = TextUtils.ToInt(treeData.FocusedNode.GetValue(colIDTree));
            DataTable dt = TextUtils.Select("select * from MaterialGroup where ParentID = " + id);

            if (dt.Rows.Count > 0)
            {
                MessageBox.Show("Không thể thêm vật tư vào nhóm chính!", TextUtils.Caption, MessageBoxButtons.OK, MessageBoxIcon.Stop);
                return;
            }
            frmMaterial frm = new frmMaterial();

            frm.GroupID = id;
            //if (frm.ShowDialog() == DialogResult.OK)
            //{
            //    LoadInfoSearch();
            //}
            frm.LoadDataChange += main_LoadDataChange;
            frm.Show();
        }
        private void btnEdit_Click(object sender, EventArgs e)
        {
            int id = TextUtils.ToInt(grvData.GetFocusedRowCellValue(colID));

            if (id == 0)
            {
                return;
            }
            MaterialModel model = (MaterialModel)MaterialBO.Instance.FindByPK(id);

            _rownIndex = grvData.FocusedRowHandle;
            frmMaterial frm = new frmMaterial();

            frm.GroupID  = model.MaterialGroupID;
            frm.Material = model;
            //if (frm.ShowDialog() == DialogResult.OK)
            //{
            //    LoadInfoSearch();
            //}
            frm.LoadDataChange += main_LoadDataChange;
            frm.Show();
        }